Karen O appeared in an outsize sort of kimono, stroking the mike like Tina Turner, before stripping down to a tiny dress. Nick Zinner's board of guitar effects has grown to resemble something on the SciFi Channel; his set list detailing his effect changes was so complex, it looked like a map of the human genome.

The band has grown, too, to include Slint's David Pajo on synthesizers, acoustic guitar and -- yes -- bass. Although they've essentially transformed themselves into a dance act with It's Blitz! -- and the set wasn't as chaotic as their early, alcohol-driven shows -- the Yeahs' set showcased their entire career, and Zinner's snarling guitar, quieted on the new album, Sunday night added heft to the newer, synth-heavy tracks.

While O vamped and careened around the stage, Zinner rocked out -- which for him means just swinging his well-worn Stratocaster back and forth as if he were watering the lawn. The band churned out a dead-on version of "Human Fly," a tribute to fallen Cramps front man Lux Interior; for their encore, they took requests called out by sweaty, delighted fans.

The spacious arrangements and the move away from crashing-riff rock marks a new direction for the Yeah Yeah Yeahs, but they have it down cold.